Saturday between June 20 and 26 June, Midsummer Day; the occasion is also celebrated as the Day of the Finnish Flag. The flag is hoisted on Midsummer's eve at 6 PM and flown through the night until 9 PM the next day.

It has become customary to fly the Finnish flag on the following occasions. The dates are also listed in the Finnish State Calendar compiled by the University of Helsinki, and it is recommended that the flag is flown on these occasions in the same way as on those prescribed by law.[2]

Third Sunday in May, memorial day for the war dead (everyone who has died in Finnish wars, combat-like duties or peacekeeping operations both during fighting and after they've ceased, including those executed or who have died as a POW)

July 6, birthday of the poet Eino Leino; the occasion is also a celebration of poetry and summer